公开(公告)号：US20210068134A1

公开(公告)日：2021-03-04

申请号：US17095542

申请日：2020-11-11

Applicant: Huawei Technologies Co., Ltd.

Inventor： Meng HUA ,  Yuan YANG ,  Hao TANG ,  Han ZHOU ,  Changguo JIANG ,  Hao WANG

IPC: H04W72/12 ,  H04L5/00 ,  H04W72/04 ,  H04B7/0456 ,  H04B7/0452

Abstract: A communications method includes: A first terminal side device determines a frequency domain resource of a scheduled first physical downlink shared channel (PDSCH), where the first PDSCH corresponds to a first demodulation reference signal (DM-RS) on a first antenna port; and when the frequency domain resource includes N consecutive frequency domain units, and there is a second DM-RS on a second antenna port in each of L consecutive frequency domain units in the N frequency domain units, determines, that precoding of the second DM-RS in each of the L frequency domain units is the same. The second DM-RS and the first DM-RS are in a same code division multiplexing CDM group, the second DM-RS corresponds to a second PDSCH scheduled for a second terminal side device, N is an integer greater than 1, and L is less than or equal to N, and is an integer greater than 1.